- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 50/409 - Separators, membranes or diaphragms characterised by the material
Patent holdings for IPC class H01M 50/409
Total number of patents in this class: 486
10-year publication summary
|
1
|
4
|
14
|
52
|
29
|
156
|
92
|
47
|
47
|
15
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Contemporary Amperex Technology Co., Limited | 6484 |
41 |
| Zeon Corporation | 4078 |
35 |
| LG Energy Solution, Ltd. | 14807 |
35 |
| Sanyo Electric Co., Ltd. | 3698 |
16 |
| Panasonic Intellectual Property Management Co., Ltd. | 31221 |
16 |
| Toray Industries, Inc. | 6931 |
14 |
| NGK Insulators, Ltd. | 4941 |
13 |
| Asahi Kasei Kabushiki Kaisha | 2654 |
13 |
| LG Chem, Ltd. | 17598 |
11 |
| Murata Manufacturing Co., Ltd. | 24465 |
11 |
| Samsung Electronics Co., Ltd. | 145416 |
9 |
| GS Yuasa International Ltd. | 2028 |
9 |
| Ningde Amperex Technology Limited | 2064 |
8 |
| Celgard, LLC | 310 |
7 |
| Daramic, LLC | 217 |
6 |
| Toyota Motor Corporation | 31819 |
5 |
| Sumitomo Chemical Company, Limited | 9040 |
5 |
| Teijin Limited | 1245 |
5 |
| Apple Inc. | 54658 |
4 |
| Samsung SDI Co., Ltd. | 8174 |
4 |
| Other owners | 219 |